The essential oil of Rhododendron anthopogon was investigated by GC-MS, and seventeen compounds (representing approximately 98% of the oil) were identified. The major components of the aerial parts of the oil were the monoterpenes alpha-pinene, beta-pinene, limonene and the sesquiterpene delta-cadinene. Biological studies revealed a weak topical anti-inflammatory activity; a significant killing...

The essential oils of leaves and twigs from the Euphorbiaceous Croton draconoides, C. urucurana and Julocroton triqueter were obtained and analyzed by GC and GC-MS. In total, 101 volatile constituents were identified, comprising an average of 90% of the oil, mostly made up of mono- and sesquiterpenes. The monoterpene hydrocarbons varied from 1.2 to 40.2%, the sesquiterpene hydrocarbons from 34....

GC-MS analysis identified forty seven and fourteen components in oils extracted using HD and in the volatile fractions extracted using HSE, respectively. eudesm-7(11) en-4-ol (28.46%), α-terpinyl acetate (12%), germacrene D-4-ol(7.3%), 1,8-cineole (6.22%), δ-cadinene (6.49%), bicyclogermacrene (5.20%) and α-cadinol (5.06%) were recorded as the main components of the essential oil and The major ...

The chemical composition of the essential oil from PINELLIA TUBER (Japanese name: Hange), the dried rhizome of Pinellia ternata, was investigated by capillary gas chromatography (GC) and GC-mass spectrometry (MS) analyses. The oil obtained from Pinellia tuber was revealed the presence of 114 compounds, representing 90.6% of the total oil identified. This colorless oil had a spicy and woody odor...

Chamaecyparis formosensis is a precious conifer endemic in Taiwan. To understand the sesquiterpene synthesis mechanism in this tree, full-length cDNA of a putative sesquiterpene synthase (sesqui-TPS), designated Cf-Cad , was obtained by rapid amplifi cation of complementary DNA ends-polymerase chain reaction. Cf-Cad is 1812 bp in length. To identify its function, recombinant protein from Escher...

The essential oil was obtained from crushed seeds, extracted through Hydrodistillation method. The percentage yield of Carum roxburghianum was found 4.7% respectively. Physical properties i.e., colour, odour, specific gravity, solubility, refractive index, acid value and ester value were recorded according to the standard procedures. Chemical composition of essential oil of Carum roxburghianum ...

The composition of the essential oils of Teucrium chamaedrys L. belongs to the family Lamiaceae, It is growing wild in the margin of mountainous roads of arid and cold climate of north Iran. In this research, essential oils of T. chamaedrys, extracted and measured at the different location by different methods of distillationand then were analyzed by GC and GC/MS. Investigation and comparison o...